happywork
Joined: Aug 10, 2016
Posts: 7531
From:
|  Posted: 2017-07-06 02:39
But the internal structure is loose, the mechanical properties of the big Da zhe kou once damp, the internal structure of the substrate is disintegrated, and serious quality problems occur.Health-related indicators are not more guaranteed.
Experts point out that the quality of floor products can be judged simply by measuring the density of the non-8-mm thickening and strengthening the density of the floor.
Take a few pieces of the rules weighing the sample of the floor, the floor using a ruler, measure the length and width of the sample, the sample volume is multiplied by the thickness of the floor again,
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